Graham Eaton / The Norber Erratics. Blocks of older Silurian sandstone, perched on top of younger Carboniferous limestone, that were left by retreating ice at the end of the last Ice Age, Clapham, Yorkshire, winter

Graham Eaton / An exposed bedding plane of Blue Lias, Jurassic age, Limestone and shale, showing rectilinear jointing patterns. Southerndown, South Glamorgan Heritage Coast, Wales, UK. September 2017.

Graham Eaton / Conglomerate at the unconformity between the Carboniferous limestone below and the Triassic sandstone above at Sully, near Cardiff, South Glamorgan, Wales, UK. September.

Graham Eaton / An erratic of Silurian sandstone sitting on Carboniferous limestone at Twistleton Scar above Ingleton, with Ingleborough in the backgrond, October. Whernside, Yorkshire, England, UK.

Graham Eaton / Glacial outwash sand and gravel deposits, Baumaris, Wales, UK, June. These deposits were laid down in a fluvial environment of braided streams near the front of a retreating glacier, during the last I...

Graham Eaton / Glacial Sand and Gravel deposited within a kettle hole, Baumaris, Anglesey, Wales, UK, June. Sediment is deposited around a block of ice left near the front of a melting or retreating glacier. When t...

Graham Eaton / Tilted beds of sandstone and thin shales of the Carboniferous, Culm Measures (Bude Formation) Sandy Mouth near Bude, Cornwall, UK, May. The bed represent cycles of deposition associated with climate c...

Graham Eaton / Tilted beds of Carboniferous age, Culm Measures (Bude Formation) sandstone and shale, Bude, Cornwall, UK, May.

Graham Eaton / Triassic age Conglomerate and Sandstone, part of the Otter Sandstone Formation. The conglomerate pebbles mostly comprize quartz and quartzite reaching 20cm in diameter. Budleigh Salterton, Devon, UK,...

Graham Eaton / Tilted beds of sandstone and thin shales of the Carboniferous, Culm Measures (Bude Formation) Sandy Mouth near Bude, Cornwall, UK, May. The bed represent cycles of deposition associated with climate c...

Graham Eaton / A Glacial Erratic at Norber near Austwick, Yorkshire, UK. This is one of the Norber erratics, where blocks of older Silurian sandstone were left on top of younger Carboniferous limestone by a retreati...

Graham Eaton / A Glacial Erratic at Norber near Austwick, Yorkshire, UK. This is one of the Norber erratics, where blocks of older Silurian sandstone were left on top of younger Carboniferous limestone by a retreati...